当然，我还得弱弱的问一句：你还看的懂中文吗?要不你就再给笔友写封信请求帮助，你不都习惯了么?。

Of course, I have to ask: do you understand Chinese? Or you'll give pen pals write a letter to ask for help, you are not accustomed to?

youdao

弱弱的问一句：你们的产品有检验证书吗，能不能给客户提供，是怎么样收费的。

We would like to know so that we can opt to have options in sending to us the sample. Kindly give us, if possible the cost for sending the sample by AIR.

youdao